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Cooler Master UCP 900W Power Supply Review

Manufacturer: Cooler Master
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Specifications and Packaging

The Cooler Master UCP 900W power supply is rated for a combined, continuous output power of up to 900 watts (1,080W peak) at 40°C operating temperature (internal case air temperature).  The PSU includes universal AC line input (automatically adjusts the AC line voltage) and active PFC, which makes the unit more environmentally friendly to the local power grid.  The UCP 900W PSU is 80PLUS Silver certified and was designed to provide up to 88% efficiency during normal operation.


Cooler Master has chosen to use four +12V rails instead of delivering a single, large +12V output as many newer power supply manufacturers are electing to do.  This is accomplished by implementing current limiting circuits into the design.  The four +12V outputs are distributed as following.

    +12V1    (25A)    24-pin ATX, 4-pin ATX 12V, SATA, 4-pin Molex and 4-pin FDD

    +12V2    (20A)    4-pin ATX 12V (1/2 EPS12V 8-pin) x2

    +12V3    (22A)    (2) PCI-E 6-pin and (1) 8-pin

    +12V4    (22A)    (2) PCI-E 6-pin and (1) 8-pin


The following tables list the UCP 900W PSU specs from the Cooler Master website.


Packaging and Parts


The CM UCP 900W power supply arrived securely packed inside a large retail box that highlights the power supplies features and specifications on the back.  In addition to the power supply the box contains a heavy duty 14AWG/3 power cord (rated for 15A), mounting screws, and a User’s Manual on CD.


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